I think that we are going to change directions. I am getting pretty much the same feedback from everyone. Please if anyone has any other suggestions or information, send it to me.
Thanks Josh
On 1/10/07, Ross S. W. Walker rwalker@medallion.com wrote:
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Ross S. W. Walker Sent: Thursday, January 11, 2007 12:07 AM To: CentOS mailing list Subject: RE: [CentOS] VMWare GSX Server and CentOS
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of John R Pierce Sent: Wednesday, January 10, 2007 11:53 PM To: CentOS mailing list Subject: Re: [CentOS] VMWare GSX Server and CentOS
Joshua Gimer wrote:
Has anyone had experience (good or bad) with VMWare GSX
Server running
CentOS as a VM under high load?
Here is the situation. We are planning on rolling out some
new boxes
to replace an existing box. Currently this box (Sun V860)
is running
web services, database services, mail for students, and is an instructional box for compiling code, and web scripting
among other
things.
We are planning on doing one of two things, either using
VMWare and
splitting up the services or using Solaris Zones. The
box(s) has to be
able to access data stored on the SAN (Fiber Channel HBA's). The boxes(VM's), or Zones would be split up accordingly:
Database box: Oracle, Postgres, and MySQL Mail: Sendmail, POPS, and IMAPS (roughly 25,000 mailboxes) Web: Apache, PHP, mod_ssl Interactive Logins: Compilers and such.
Any information about any experiences with VMWare and
CentOS, under
similar load would be helpful. I will probably make this
same post on
the Sun Solaris Mailing List, and VMWare's forums. Thanks
in advance!
I dunno, but I'm curious why you want to run so many VMs' or zones? the database/mail/web stuff would probably all run most efficiently in the 'host' OS... I can see some advantages to running student interactive logins in a VM or zone for security isolation.
its that, or I'd put the infrastructure things (email, school web, school databases) on a dedicated and secure hardware platform, then put all the instructional stuff on a seperate hardware platform. I don't like having too many eggs in one basket.
I agree keep the infrastructure stuff physically separate from the student stuff. That said, say a 4 node cluster for infrastructure stuff running VMs on each node in a scenario where the other nodes can take over VMs from a failed node. Have them run to Fiber storage or some kind of SAN and you should be all set.
For student stuff you can run a separate cluster using VMs for different courses, maybe Vmware, maybe Xen whichever works for you.
CentOS should be able to handle all that very well, it is after all RHEL and has been tuned for heavy duty workloads.
-Ross
Actually re-reading my post let me say the infrastructure cluster can run the database/mail/web on the host OS as the previous poster said and gain significant performance. Have the host services fail-over in the cluster for continuity.
Xen/Vmare VMs for student course work is probably best as they can be rapidly deployed and varied in configuration.
-Ross
-Ross
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